The free Adobe Scan app turns your device into a powerful portable scanner that recognizes text automatically (OCR). Turn anything — receipts, notes, documents, pictures, business cards, whiteboards — into an Adobe PDF with content you can reuse.
• CAPTURE. Scan anything with precision. Advanced image technology automatically detects borders and sharpens scanned content.
• ENHANCE. Touch up scans or photos from your camera roll. Easily preview, reorder, crop, rotate, and adjust color.
• REUSE. Turn your scan into a high-quality Adobe PDF that unlocks...

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This is surprisingly a good app that would automatically capture the document once has all the four corners of the document visible. You can equallly tap on the "take picture" to capture the document as well. The app requires that you have an Adobe ID or create one during the setting up of the app. Documents are meant to be saved in the Adobe cloud, but if you prefer saving them on your local storage, then be sure to choose the "share" option, and then save it to your local storage. The app does have a couple or so unlabeled buttons, but if you are a user of "Blindo," you can grab the labels from "Blindo" or you can label them yourself.